： Based on numerical simulation model of multi-pass spinning, geometry mapping relationship between the blank and spinning component was studied, and two different design methods of variable thickness blank were proposed to improve forming quality. The results showed that the two kinds of variable thickness blanks which had reasonable material distribution along the radial direction, could obviously improve the wall thickness uniformity of the spinning parts, but the variable thickness blank could also give rise to larger spinning force. By using the design method for variable thickness blank, the spinning forming experiment of aluminum alloy spherical head was completed with the good forming quality.
SONG Jinlong，ZHAO Yixi，YU Zhongqi，KONG Qingshuai
. Research on Design Method of Variable Thickness Blanks for Aluminum Alloy Head Spinning Forming[J]. Journal of Shanghai Jiaotong University, 2017
, 51(11)
: 1304
-1311
.
DOI: 10.16183/j.cnki.jsjtu.2017.11.004
［1］WANG L, LONG H. A study of effects of roller path profiles on tool forces and part wall thickness variation in conventional metal spinning［J］. Journal of Materials Processing Technology, 2011, 211(12): 2140-2151.
［2］LIU J H, YANG H, LI Y Q. A study of the stress and strain distributions of first-pass conventional spinning under different roller-traces［J］. Journal of Materials Processing Technology, 2002, 129(1/3): 326-329.
［3］刘兴家, 张奕黄.封头旋压成形旋轮运动轨迹确定方法的研究［J］.塑性工程学报, 1997, 4(4): 84-90.
LIU Xingjia, ZHANG Yihuang. How to select the moving passes of the spinning roller［J］. Journal of Plasticity Engineering, 1997, 4(4): 84-90.
［4］ESSA K, HARTLEY P. Numerical simulation of single and dual pass conventional spinning processes［J］. International Journal of Material Forming, 2009, 2(4): 271-281.
［5］ESSA K. Optimization of conventional spinning process parameters by means of numerical simulation and statistical analysis［J］. Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture, 2010, 224(11): 1691-1705.
［6］何巨. 大口径超薄壁筒减薄旋压成形工艺研究及壁厚误差预测［D］. 长沙：中南大学机电工程学院, 2011.
［7］徐银丽.异型薄壁壳体强力旋压成形机理及规律的三维有限元分析［D］.西安：西北工业大学材料学院, 2006.
［8］马明娟, 詹梅, 杨合, 等. 异型薄壁壳体强力旋压三维有限元模型的建立［J］. 中国机械工程, 2006(Sup1): 101-104.
MA Mingjuan, ZHAN Mei, YANG He, et al. 3D FE modeling of the power spinning of complicated thin-walled shell［J］. China Mechanical Engineering, 2006(Sup1): 101-104.
［9］詹梅, 马明娟, 杨合, 等.旋轮参数对异型薄壁壳体强力旋压成形的影响［J］.锻压技术, 2006, 31(5): 144-147.
ZHAN Mei, MA Mingjuan, YANG He, et al. Influence of roller parameters on power spinning of thin-walled shell with special shape［J］. Forging and Stamping Technology, 2006, 31(5): 144-147.
［10］陈岗, 詹梅, 杨合, 等.基于正交优化的异型薄壁壳体强力旋压成形有限元分析［J］.塑性工程学报, 2008, 15(4): 67-71.
CHEN Gang, ZHAN Mei, YANG He, et al. FEA of power spinning of complicated thin-walled shell based on orthogonal optimization［J］. Journal of Plasticity Engineering, 2008, 15(4): 67-71.
［11］MUSIC O, ALLWOOD J M. Tool-path design for metal spinning［C］∥10th International Conference on Technology of Plasticity. AACHEN: German Metal Forming Association. 2011: 542-547.
［12］史敏, 赵亦希, 孔庆帅, 等. 薄壁铝合金封头挡板辅助旋压成形方法［J］. 上海交通大学学报, 2015, 49(10): 1497-1503.
SHI Min, ZHAO Yixi, KONG Qingshuai, et al. Baffle-assistant spinning method for thin-walled aluminum alloy seal head［J］. Journal of Shanghai Jiao Tong University, 2015, 49(10): 1497-1503.
［13］史敏. 薄壁铝合金封头挡板辅助旋压成形新工艺研究［D］. 上海：上海交通大学机械与动力工程学院, 2015.
［14］魏战冲, 李卫东, 万敏, 等. 旋轮加载轨迹与方式对多道次普通旋压成形的影响［J］. 塑性工程学报, 2010, 17(3): 108-112.
WEI Zhanchong, LI Weidong, WAN Min, et al. Influence of roller-trace on multi-pass conventional spinning process［J］. Journal of Plasticity Engineering, 2010, 17(3): 108-112.
［15］LIN X J, GE T, WANG J, et al. Numerical investigation of effects of deformation allocation on multi-pass conventional spinning process of curvilinear generatrix parts［J］. Journal of Mechanical Engineering Science, 2015, 229(18): 3299-3307.
［16］林孝俊. 曲母线件多道次普旋成形关键参数对成形质量影响分析及其优化［D］. 杭州：浙江大学机械工程学系, 2014.
